Tits in the garden

Nevertheless, the study revealed unprecedented insight into the stopover duration and departure time of migratory passerines at Falsterbo. In contrast, fat reserves at arrival, age or sex did not seem to be involved in determining the duration of stopover. During the autumn migration season ofin conjunction with the regular ringing scheme at Falsterbo Bird Station, individual passerines of five target species willow warbler, garden warbler, song thrush, European robin and blue tit were captured, measured and released with radio transmitters, and their subsequent movements and departure events were registered by an automated radio tracking system. I found that stopover duration was species-specific, with blue tits, the partial migrants, stopping over for longer periods than both short- and medium and long-distance migrants. Det kan därför hända att det inte återger originalet helt. Detta omdöme har maskinöversatts från engelska Vad är det här? Läs alla 84 omdömen.

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Jabari 13 days ago

Well there is scientific evidence that as an evolutionary adaptation early man developed a reaction to male breeding competition where their sperm production and arousal are increased dramatically to increase the chances of beating other mens sperm to the egg.